6 and 3/7 , use can always use a online fraction calculator
At the time the cannonball reaches the ground, the vertical height of the cannonball from the ground is 0, i.e. h = 0.
Thus, the time it will take the cannonball to reach the ground is given by

Therefore, it will take the cannonball 8 seconds to reach the ground.
9x^5 • 4x^4
9•4= 36
X^5+4= x^9
Your answer is 36x^9
Answer:
2 irrational solutions
Step-by-step explanation:
using the quadratic formula:

3x²−x−5=0
where a = 3, b = -1 and c = -5, plug in those values in the quadratic formula

you get two solutions:

both can be written as:

They are irrational as they cannot be written in the form p/q where p and q are whole numbers (integers)
Answer:
f(-9) = 279
Step-by-step explanation:
f(x) = 4x^2 + 7x + 18
f(-9) = 4(-9)^2 +7(-9) + 18
= 4(81) - 63 + 18
= 324 - 63 + 18
= 279